1. Comparison of different doses of gonadotropin-releasing hormone antagonist Cetrorelix during controlled ovarian hyperstimulation;Albano;Fertility and Sterility,1997
2. Gonadotrophin-releasing hormone antagonists for assisted conception;Al-Inany;Cochrane Database Systematic Reviews,2001
3. Gonadotrophin-releasing hormone antagonists for assisted conception;Al-Inany;Cochrane Database of Systematic Reviews,2006
4. Gonadotrophin-releasing hormone antagonists for assisted reproductive technology;Al-Inany;Cochrane Database of Systematic Reviews,2011
5. DIR, Deutsches IVF Register (2000–2015) Jahrbuch, http://www.deutsches-ivf-register.de.